Moth exterminator



Jan. 10,1928. 1,655,540

A. c. FRIEDEL MOTH EXTERMINATOR Filed Jan. 29. 1927 A 5 W f77'7'0 NEYS.

" Patented Jan. 10, 1928.

PATENT OFFICE.

' I ARTHUR O. FBIEISEL, OF SYRACUSE, NEW YORK.

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Application filed January 29, 1827. Serial No. 164,515.

sects and the main object of the present in-- vention is to provide a receptacle for receiving and retaining these crystals and which is of relativel li ht weight and pr ov1ded with means w ere y it may be frictlonally supported and retained upon the bulb of an ordinary electric incandescent lamp with which the wardrobe or other store room for garments and the like may be equipped.

Another object is to make the bulb-engaging means of spring wire such as copper, brass or the like having a high degree of heat conductivity and to secure these wires to the bottom of the tray or receptacle so that they may contact with the crystals or other material in the tray for transferring heat from the bulb to said crystals and thereby to effect a continuous but slow evaporation therefrom.

Other objects and uses relating to speclfic parts of the device will be brought out in the following description.

In the drawings Figure l'is a perspective view of an 1ncandescent electric lamp with its supporting cable and the crystal-receiving tray in operating positionon the bulb of the lamp.

Figure 2 is a sectional vlew of the tray 0 showing the electric lamp in elevation and the spring jaws of the tray 1n operative engagement with the bulb of the lamp.

Figure 3 is a sectional view of the tray with the bulb-engaging clasp thereln, the lamp being omitted.

Figure 4 is a horizontal sectional view taken in the plane of line H, Fi re 3.

In order that the invention may e clearly understood I have shown a lamp socket 1- 5o adapted'to be supported within a wardrobe or other room by means of a cable -2- carr ing the electric conductors for an incand escent electric lamp as -3- which is secured in the usual manner in the socket 1-, the bulb as 4- of the lamp being somewhat spherical or slightly enlarged at its lower end.

.-A cup or tray -5 of aluminum or other non-corrodible material which is comparatively light in weight is adapted to receive and retain a relatively small quantity of evaporable crystals 6 and is provided with a pair of spring wire loops 7- of copper, brass or other material having a high degree of heat conductivity.

The lower ends of these loops are brought. close together and provided with lateral extensions 8-- which are soldered or otherwise secured to the bottom of the tray 5-- near the center thereof, the remaining por tions of the loops being extended upwardly in diverging planes for frictional engagement with opposite sides of the lamp bulb 4 as shown in Figure 2, the dotted lines of said figure indicating the position assumed by the loops -7 when the tray is removed from the lamp.

The central portion of the bottom of the tray is depressed at -9 to form a supplemental but relatively small cup in which portions of the crystals may accumulate in direct contact with the converged ends of the loops 7 so. that the heat from the lamp may be transmitted to the relatively small portion of the crystals which ma lodge in the supplemental cup 9.

Assuming that the lamp is in operative position in the wardrobe or other room in which the vapor from the crystals is to be liberated, then the tray with the crystals therein will be placed in operative position upon the bulb from the underside upwardly thereby causing the spreading of the loops 7 to frictionally engage opposite sides of the bulb by the tension of the spring loops toward each other and holding the tray in operative relation to the'lamp.

The lower ends of each loop are brought relatively close-to each other near the extensions 8 and are held against spreading by suitable rings 10- thereby reduc ing the strain upon the connections between the extensions 8- and bottom of the tray.

The outer end of the extensions 8 are soldered or otherwise secured to a ring 8 which is seated on the bottom of the tray 5 adjacent the side walls thereof for conducting the heat from the loops to outlying portions of the crystals and thereby to increase thevaporization' of said crystals.

What I claim is 1. A moth exterminator for wardrobes and the like, a tray having wire spring loops fastened to the bottom thereof to project upwardly from said bottom in upward- 1y diverging planes for engagement with opposite sides of the bulb of an incandescent electric lamp, said tray being adapted to contain an evaporable substance surrounding the lower converging portions of the loops, and a ring encircling the lower ends of the loops near the bottom of the tray to assist. in relieving the strain on the connections between said loops and bottom of the tray as the loops are opened and closed.

2. In a moth exterminator for wardrobes, a'cup-shaped container open at the top for receiving a vaporable substance, and wire spring loops having their lower ends brought into close proximity to each other and secured to the bottom of. the container, said loops extending upwardl from said bottom in upwardly diverging p anes, the bottom of the tray adjacent the lower convergin ends of the loops being depressed below t e remaining portions of the bottom to form a supplemental cup for receiving small portions of the vaporable substance.

3. In a device of the classv described, a circular tray having a ring secured to the upper surface of its bottom adjacent to the outside wall of the tray, a pair of spring loops extending upwardly from the bottom of the tray for engagement with opposite sides of the bulb of an incandescent lamp, each loop having a pair of arms extending outwardly along the bottom of the tray and secured to said ring.

4. A device as described in claim 3 having a ring encircling the lower ends of the loops adjacent the outwardly extending arm.

in Witness whereof, I have hereunto set my hand this 3d day of January, 1927.

- ARTHUR C. FRIEDEL. 

